Lubricator



J.KELLY. LUBRIGATOR.

(No Model.)

Patented July 24, v1883.

A lA i' UNITED STATES PATENT OFFICE.

JOHN KELLY, or PEORIA, ILLINOIS.,

LUBRjcAToR.

` .SPECIFICATION forming part of Letters Patent No. 281,699, dated July- 24, 1883. v v Application filed January 13, 1883. (Nomodel.)

To all whom, may con/cern:

Beit known that I, JOHN KELLY, of Pe-.

Illinois, have invented an Improved Lubricator; and I do herebydeclare that the'following is a full, clear, and exact description thereof, reference being had to the annexed drawing, making a part of this specication, in which like letters of reference refer to like parts, and in which the figure on the drawing represents a vertical central section.

The obj ect of my invention is the construction of a lubricator for steam-engine cylindersy which shall work automatically.

In the drawing, M M represent the oil-cup, within which is secured the small vertical cylinder'L. rlhe aperture through the bottom of said. cylinder'L connects more or less directly with the steam-chest, pipe, or cylinder of the engine, as desired, and furnishes the.

only channel for the inlet of steam orV egress of oil therefromto the part of the engineto be lubricated. The top of said cylinder L lis closed bya cap, F, having through it a vertical circular orilice, countersunk at each end. Within said orice fits loosely the tubular drop G, having at each extremity a collar adaptedto fit air-tight the countersunk ends of said orifice of the cap F. The aperture through the gravity-drop G is also round in cross-section, and has its lower end countersunk. Through it extends a slender pin, J, triangular in cross-section, having the heads v E and I-I, the lower one, H, of which is made somewhat conical to fit air-tight the countersunk end of the aperture through the drop G. The coiled spring S; pressing between the upper end of the drop G and the head E, retainsthe conical head H up against the said drop G.

The operation of this automatic lubricator is asfollows: The cap D is removed,the cup M filled with oil up to the top edge of the cap F, and then said cap D replaced. Before the steam is let in through the-passage N, the positions of the different parts are as shown 4in the drawing. Now, as the steam is allowed to enter, it presses up against the head I-I andthe lower end of the drop G; but, lthe other end of the pin J being in contact with the screw-rod B,the drop G moves upward alone. This allows the steam to pass between the said head H and the countersunk end of the drop G, and thence up through the aperture through the said drop G, the slimness of the pinJ impeding'but little` the iiow of the steam thereby. From thence the steam goes into the upper part of the oil-cup M, above the surface of the oil. When sufficient steam has entered to make thepressure above the surface of the oil equal to the pressure within 'the cylinder Lbelow the drop H, the drop G yfalls again to the position shown in the drawing. `In the meantime, while the drop G was bottom of the oil-cup `and causes the rise in' Ylevel of the oil. The steam imprisoned over the surface of the oil sooncondenses, the drop G again rises, more oil 4passes down, equilibrium isV again restored by the upward movement ofthe steam, and the drop G falls. In

this way a continuously-intermitting supply of oil'drips down into the cylinder L, from which it passes to the-desired places of lubri-v cation. By raising the screw-rod B higher, the rate at which steam can enter into the oilcup is diminished, vand increased by lowering it. This is readilyunderstood when we notice that if said rod B is raised high enough no steam can enter `the oil-cup, but simply raises both drop G and pin J.

What I claim as my invention, and for which I desire Letters Patent, is as follows, to wit: 1. As a steam-cylinderv lubricator, the .oilcup M, having cylinder L, in combination Awith the vertically-perforated cap F, doublyshouldered tubular drop G, pin J, having heads H `and E, spring-S, and screw-rod B, substantially as and for the purpose specified.

2. In a lubricator, the doubly-shouldered drop G, vertically movable in a loosely-oon- In testimony that I claim the foregoing inning aperture, in combination with the pin Xf'ention, I have hereunto set my hand this 5th J, having head H and Spring S, substantially day of January, 1883.

as and for the purpose specified. JOHN KELLY. 5 3. In a lubrieator, the combination of the XVitneSses:

doub1y-headed drop G and single-headed pin H. XV. VELLS,

J, for the purpose set forth. JESSE MOORE. 

